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LM3532 Datasheet(PDF) 26 Page - Texas Instruments

Part # LM3532
Description  LM3532 High-Efficiency White LED Driver With Programmable Ambient Light Sensing Capability and I2C-Compatible Interface
PDF  52 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

LM3532 Datasheet(HTML) 26 Page - Texas Instruments

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LM3532
SNVS653E – JULY 2011 – REVISED AUGUST 2015
www.ti.com
7.6.4 Control A PWM
This register configures which PWM input (PWM1 or PWM2) is mapped to Control Bank A and which zones the
selected PWM input is active in.
Table 6. Control A Pwm Register Description (Address 0x13)
Bit 7
Bit 6
Bit 5
Bit 2
Bit 2
Bit 2
Bit 1
Bit 0
N/A
Zone 4 PWM
Zone 3 PWM
Zone 2 PWM
Zone 1 PWM
Zone 0 PWM
PWM Input
PWM Select
Enable
Enable
Enable
Enable
Enable
Polarity
0 = Active PWM 0 = Active PWM
0 = Active
0 = Active PWM 0 = Active PWM 0 = active low
0 = PWM1 input
input is disabled input is disabled in
PWM input is
input is disabled input is disabled polarity
is mapped to
in Zone 4
Zone 3 (default)
disabled in
in Zone 1
in Zone 0
Control Bank A
(default)
Zone 2
(default)
(default)
(default)
(default)
Not Used
1 = Active PWM 1 = Active PWM
1 = Active
1 = Active PWM 1 = Active PWM 1 = active high
1 = PWM2 is
input is enabled
input is enabled in
PWM input is
input is enabled
input is enabled
polarity
mapped to
in Zone 4
Zone 3
enabled in
in Zone 1
in Zone 0
(default)
Control Bank A
Zone 2
7.6.5 Control B PWM
This register configures which PWM input (PWM1 or PWM2) is mapped to Control Bank B and which zones the
selected PWM input is active in.
Table 7. Control B Pwm Register Description (Address 0x14)
Bit 7
Bit 6
Bit 5
Bit 2
Bit 2
Bit 2
Bit 1
Bit 0
N/A
Zone 4 PWM
Zone 3 PWM
Zone 2 PWM
Zone 1 PWM
Zone 0 PWM
PWM Input
PWM Select
Enable
Enable
Enable
Enable
Enable
Polarity
0 = Active PWM
0 = Active PWM
0 = Active
0 = Active PWM
0 = Active PWM
0 = active low
0 = PWM1
input is disabled
input is disabled
PWM input is
input is disabled
input is disabled
polarity
input is
in Zone 4
in Zone 3
disabled in
in Zone 1
in Zone 0
mapped to
(default)
(default)
Zone 2
(default)
(default)
Control Bank B
(default)
(default)
Not Used
1 = Active PWM
1 = Active PWM
1 = Active
1 = Active PWM
1 = Active PWM
1 = active high
1 = PWM2 is
input is enabled
input is enabled in PWM input is
input is enabled
input is enabled
polarity
mapped to
in Zone 4
Zone 3
enabled in
in Zone 1
in Zone 0
(default)
Control Bank B
Zone 2
7.6.6 Control C PWM
This register configures which PWM input (PWM1 or PWM2) is mapped to Control Bank C and which zones the
selected PWM input is active in.
Table 8. Control C Pwm Register Description (Address 0x15)
Bit 7
Bit 6
Bit 5
Bit 2
Bit 2
Bit 2
Bit 1
Bit 0
N/A
Zone 4 PWM
Zone 3 PWM
Zone 2 PWM
Zone 1 PWM
Zone 0 PWM
PWM Input
PWM Select
Enable
Enable
Enable
Enable
Enable
Polarity
0 = Active PWM
0 = Active PWM
0 = Active
0 = Active PWM
0 = Active PWM
0 = active low
0 = PWM1
input is disabled
input is disabled
PWM input is
input is disabled
input is disabled
polarity
input is
in Zone 4
in Zone 3
disabled in
in Zone 1
in Zone 0
mapped to
(default)
(default)
Zone 2
(default)
(default)
Control Bank C
(default)
(default)
Not Used
1 = Active PWM
1 = Active PWM
1 = Active
1 = Active PWM
1 = Active PWM
1 = active high
1 = PWM2 is
input is enabled
input is enabled in PWM input is
input is enabled
input is enabled
polarity
mapped to
in Zone 4
Zone 3
enabled in
in Zone 1
in Zone 0
(default)
Control Bank C
Zone 2
7.6.7 Control A Brightness Configuration
The Control A Brightness Configuration Register has 3 functions:
1. Selects how the LED current sink which is mapped to Control Bank A is controlled (either directly through the
I2C or via the ALS interface).
26
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Product Folder Links: LM3532



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